Screen.



C. TRAUT.

SCREEN.

APPLICATION FILED 00111. 1914.

Patented June 13, 1916.

' may CLIFFORD TRAUT, OI NEWPORT, KENTUCKY.

SCREEN.

Specification of Letters Patent.

Patented line 13, 1916.

Application filed October 17, 1914. Serial No. 867,091.

To all whom it may concern:

Be it known that I, CLIFFORD TRAUT, a citizen of the United States, anda resident of the city of Newport, in the county of Campbell and Stateof Kentucky, have invented certain new and useful Improvements inScreens, of which the following is a full, clear, and exact description,reference being had to the accompanying drawings, forming part of thisspecification. 4

In the art of wire screen making, and in that branch of it, all metalscreen making, there has been some attempt at providing a rewirablemolding for the wire mesh of the screen. In the metal moldings, channelshave been provided to receive spring retaining strips, which Wedge thescreening in place, but can be removed to put in new wire. These stripsare slit tubes or the like and liable to be bent out of shape uponremoval. Also the channels, as above referred to, are made of single plymetal whereby a solid retaining strip or spline can be used, the channelexpanding at the mouth to receive the parts.

It is the object of this invention to take a further step in the art,and provide a rewirable metal screen in which all the parts with thechance of putting out a screen, ostensibly rewirable, but in factweakened in structure and liable to such warping and bending thatrewiring is impossible. i

This object is accomplished by that certain structure to be hereinafterspecifically pointed out and claimed, whereby a special shaped splinedoes away with the necessity of compress'ble or expandible parts.

In the drawings, Figure 1 is a front elevation of a screen. Fig. 2 is avertical section through the screen on a-larger scale, taken near theside thereof. Fig. 3 is a perspective view of one of the splines. Fig. 4is a perspective viewof .one screen corner with the spline in process ofinsertion.

The screen has moldings 1, adapted to dovetail at the corners andsuitably brazed ,at-the joints. These moldings are of like structure,being formed of a single strip bent to form a tubular frame piece havingsides 2, 3, and ends 4, 5.v The edge forming the end 5 is indented at 6to form a shoulder and bent at right angles at 7. The side 3 is extendedalong the portion 7, and bent at right angles to form the inner wall 8of the chanbe solid and stiff, thereby doing away in the long arms,

solid parts instead of nel 5, 7 8. At the inner edge of the channel wall8 is placed a bead 9.

The spline or retaining strip is preferably of solid metal structure,with a long portion 10, of oval cross section, and an end portion 11, atright angles,'approximately circular in cross section, or with the longdiameter of the oval somewhat reduced. There are preferably four ofthese splines, one for each side of the screen, and as the short endsare to lie over the long ends in mounting the Wire screening, there arebevels 12 on the tip lof each long end, and bevels 13 on the tip of eachshort end, the latter bevel being the undercut one.

In mounting the wire mesh 14, it is laid over the screen, with its fouredges lying over the channel 5, 7, 8. The splines are then taken, withthe short arms perpendicular to the screen, and the narrow way of theovals of the long portions of the splines pre sented to the channels,and without any forcing pressed into the channels together with. thescreening. The short arms are then turned down bringing the long arms toa position inside of the channels which presents the'long way of theoval to the channel (Fig. 2). Inasmuch as the short arm is circular, orof reduced diameter for the long diameter, when pressed inwardly it willsnap by the bead 9 and shoulder at 6. The splines will lap over eachother owing to the bevels mentioned, and will remain in place.

To remove the splines for rewiring, all that is required is to lift upthe short arm which w1ll rotate the spline to permit its readywithdrawal from the channel, but with long splines the spline mightitself twist. Accordingly holes or sockets 15 are formed to receive apin, so that the spline can be turned at'the same time that the shortarm is raised,

It will be understood that the kind of channel provided is not of strictimportance. Any channel smaller, at the mouth than at the base would besufficient. Also a spline which was not solid, so long as itapproximated in shape those above described, would still embody thisinvention. The reason why solid, not springing parts have been calledfor, is because with the invention here, it is possible for the firsttime to use parts weakened by coring out to make them removable.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, isz 1. In a screen, a channel portion around isaid screen small at the mouth, wire mesh screening, a retaining stripofoval cross section to wedge the screening in thechannel, and means forturning the spline after its insertion in the channel, for the purposedescribed.

2. In a screen, a framework therefor, a

channel in said framework for the screening, saidchannel being madesmall at the mouth, anda spline for said channel of oval cross sectionto wedge the screening in the channel, and means on said spline forturning it after its insertion in the channel, for

the purpose described.

3. In a screen, a framework therefor provided with a channel for holdingthe screening and a spline of a shape to enter said channel when turnedin one direction but not in the other directions,'and means on saidspline for turning it after its insertion in the channel, for thepurpose described.

4. In a screen, a framework therefor pro- .vided with a channel .forholding the screenfit the adjacent channel of channel when turned in onedirection but not in the other directions, and an arm at right angles tosaid spline and adapted to the screen for turning it after its insertionin the channel, for the purpose described.

6. In a screen, a framework therefor provided with channels for holdingthe screening and arset of splines of a shape to enter said channelswhen turned in one direction but notin other directions, cut away bevelson one end of the spline, angle extensions at the other ends,-to fit thechannel corners, and of a size to enter 'said channels broadside, andundercut bevels on the extension ends to lap the bevels on the adjacentspline ends, all as and for the purpose described.

In a. screen, a framework therefor provided ing and a set of splines ofa. shape to enter said channels when turned in one direction but not inother directions, cut away bevels on one end of the spline, angleextensions at the other ends to fit the channel corners, and

of a size to enter said channels broadside, and undercut bevels on theextension ends to lap the bevels on the adjacent spline ends, andsockets in the splines cut in at an angle to the angle of theextensions, all as and for the purpose described.

CLIFFORD TRAUT. Witnesses EARL W. GRIFFIN, KATHERINE SMITH.

with channels for holding the screen-

